Home / 2,772.11-4,156.75-922.73

Finding the Fourth Proportional to 2,772.11, 4,156.75 and 922.73

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Solution

The fourth proportional to 2,772.11, 4,156.75 and 922.73 is: 1,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.11 : 4,156.75 = 922.73 : x
  2. Step 2: Convert to fraction form
    2,772.11/4,156.75 = 922.73/x
  3. Step 3: Cross multiply
    2,772.11x = 4,156.75 × 922.73
  4. Step 4: Simplify right side
    2,772.11x = 3,835,557.93
  5. Step 5: Solve for x
    x = 3,835,557.93/2,772.11
  6. Step 6: Final answer
    x = 1,383.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.